Discrete
I/O
Page
|
47
d)
Receive
TCP
Packet
–
When
chosen,
the
output
can
be
controlled
via
the
reception
of
a
TCP
packet
in
the
format
described
below.
Valid
packets
are
acknowledged
by
a
return
TCP
packet
with
text
formatted
as
described
in
the
Discrete
Input
Configuration
Section.
e)
Receive
SMS
–
The
“Receive
SMS”
option
is
only
available
on
882
‐
GPRS
and
882
‐
EDGE
modems.
When
chosen,
the
output
can
be
controlled
via
the
reception
of
short
(text)
messages
containing
the
characters
specified
in
the
fields
“SMS
Text
For
(and
Not)
Ground”.
Be
aware
that
your
carrier’s
text
message
rates
may
apply
for
each
message
received
by
the
modem.
The
carrier
delivers
SMS
to
the
modem
even
when
this
choice
is
not
active.
This
can
cause
its
mailbox
to
fill
up
with
unread
messages.
When
this
choice
is
enabled,
the
modem
periodically
deletes
SMS
messages
to
make
room
for
new
ones.
As
a
result,
when
enabling
Receive
SMS,
the
mailbox
may
be
full.
Within
a
few
minutes
any
existing
messages
will
be
processed
and
deleted.
f)
Set
To
Ground
–
This
will
set
the
output
to
“Ground”
immediately.
This
disables
automated
control
of
the
output
(settings
a
‐
e).
g)
Set
To
Not
Ground
–
This
will
set
the
output
to
“Not
Ground”
immediately.
This
disables
automated
control
of
the
output
(settings
a
‐
e).
Incoming
TCP
IP
Address:
This
field
is
enabled
only
if
“Receive
TCP
Packet”
has
been
selected
for
“Output
Function”.
If
desired,
enter
a
specific
IP
address
(with
subnet
mask
if
desired)
from
which
all
valid
requests
must
originate.
Leave
the
subnet
mask
field
blank
to
match
only
the
IP
address
specified.
If
the
IP
address
varies,
or
there
is
no
desire
to
validate
the
source,
enter
0.0.0.0,
which
will
cause
the
modem
to
accept
the
connection
from
any
IP
address.
Incoming
Port:
This
field
is
enabled
only
if
“Receive
TCP
Packet”
has
been
selected
for
“Output
Function”;
Enter
the
destination
port
number
specified
by
the
IP
Address
that
will
be
sending
the
TCP
data.
This
field
is
mandatory
for
use
with
“Receive
TCP
Packet”.
ID
Verification:
This
field
is
enabled
only
if
“Receive
TCP
Packet”
has
been
selected
for
“Output
Function”;
When
Enabled,
a
received
TCP
packet
will
be
scanned
to
ensure
it
contains
the
ESN
(or
IMEI)
of
the
modem
before
the
requested
output
setting
is
applied.
This
check
is
not
performed
if
the
setting
is
disabled.
SMS
options
are
only
available
on
882
‐
GPRS
and
882
‐
EDGE
modems.
SMS
Text
For
Ground:
This
field
is
enabled
only
if
“Receive
SMS”
has
been
chosen
for
“Output
Function”.
Enter
up
to
12
characters
that
must
appear
in
an
incoming
SMS
message
to
set
the
Output
Discrete
to
“Ground”.
The
characters
specified
must
appear
in
that
exact
order
somewhere
within
the
received
message
to
trigger
the
output
discrete.
SMS
Text
for
Not
Ground:
This
field
is
enabled
only
if
“Receive
SMS”
has
been
chosen
for
“Output
Function”.
Enter
up
to
12
characters
that
must
appear
in
an
incoming
SMS
message
to
set
the
Output
Discrete
to
“Not
Ground”.
The
characters
specified
must
appear
in
that
exact
order
somewhere
within
the
received
message
to
trigger
the
output
discrete.
